Tech What does ‘OOO’ mean? Here’s what it means and how to use it when you’re away from work. August 12, 2023 Olivia Munson, USA TODAY Comments Off on What does ‘OOO’ mean? Here’s what it means and how to use it when you’re away from work. Text slang, acronyms got you confused? You're not alone. Here's what 'OOO' means.